Michigan State University

The potassium superoxide and dry DMSO will be allowed to stand in contact for 24 h and the filtrate (200 µl) will be added to 2.8 ml of an aqueous solution containing NBT (56 µM), EDTA (10 µM) and potassium phosphate buffer (10 mM). the methanolic extract (1 ml) at various concentrations will be added and the absorbance will be record at 560 nm against a control in which pure DMSO will be … ................
................